Bus



FIG. 1 is a front/left perspective view a bus of the present design;

FIG. 2 is a rear/left perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a top plan view thereof.

The broken lines in the drawings illustrate portions of the bus that form no part of the claimed design. 

CLAIM We claim the ornamental design for a bus, as shown and described. 